[LU-2843] ASSERTION( last_rec->lrh_index == tail->lrt_index )

• Type: Bug
• Resolution: Fixed
• Priority: Blocker
• Fix Version/s: Lustre 2.4.0
• Affects Version/s: Lustre 2.4.0
• Labels: MB
• Environment: 2.6.32-279.9.1.1chaos.ch5.1.x86_64; KVM x86_64 virtual machine
• Severity: 3
• Assignee: Hongchao Zhang
• Reporter: Ned Bass (Inactive)

Description

Steps leading up to:

1. create new filesystem
2. register changelog user
3. run createmany and unlinkmany in infinite loop until catalog full (LU-1586)
4. lctl --device lustre-MDT0000 changelog_deregister cl1

Build contains patches for LU-2129 and LU-2102.

LustreError: 30248:0:(llog_osd.c:596:llog_osd_next_block()) ASSERTION( last_rec->lrh_index == tail->lrt_index ) failed: 
LustreError: 30248:0:(llog_osd.c:596:llog_osd_next_block()) LBUG
Pid: 30248, comm: lctl

PID: 30248  TASK: ffff88004bd7e080  CPU: 3   COMMAND: "lctl"
 #0 [ffff88005029b590] machine_kexec at ffffffff8103283b
 #1 [ffff88005029b5f0] crash_kexec at ffffffff810ba492
 #2 [ffff88005029b6c0] panic at ffffffff814fdcf2
 #3 [ffff88005029b740] lbug_with_loc at ffffffffa0fc7fbb [libcfs]
 #4 [ffff88005029b760] llog_osd_next_block at ffffffffa06ba3ed [obdclass]
 #5 [ffff88005029b800] llog_process_thread at ffffffffa068a7f6 [obdclass]
 #6 [ffff88005029b8b0] llog_process_or_fork at ffffffffa068cb0d [obdclass]
 #7 [ffff88005029b900] llog_cat_process_cb at ffffffffa068f282 [obdclass]
 #8 [ffff88005029b950] llog_process_thread at ffffffffa068adfb [obdclass]
 #9 [ffff88005029ba00] llog_process_or_fork at ffffffffa068cb0d [obdclass]
#10 [ffff88005029ba50] llog_cat_process_or_fork at ffffffffa068d5b9 [obdclass]
#11 [ffff88005029bae0] llog_cat_process at ffffffffa068d7c9 [obdclass]
#12 [ffff88005029bb00] llog_changelog_cancel at ffffffffa0c730ff [mdd]
#13 [ffff88005029bb40] llog_cancel at ffffffffa0691538 [obdclass]
#14 [ffff88005029bb80] mdd_changelog_llog_cancel at ffffffffa0c77dae [mdd]
#15 [ffff88005029bbc0] mdd_changelog_user_purge at ffffffffa0c78220 [mdd]
#16 [ffff88005029bc10] mdd_iocontrol at ffffffffa0c78776 [mdd]
#17 [ffff88005029bc70] mdt_ioc_child at ffffffffa0d50129 [mdt]
#18 [ffff88005029bcf0] mdt_iocontrol at ffffffffa0d54608 [mdt]
#19 [ffff88005029bd90] class_handle_ioctl at ffffffffa069ba4f [obdclass]
#20 [ffff88005029be40] obd_class_ioctl at ffffffffa06852ab [obdclass]
#21 [ffff88005029be60] vfs_ioctl at ffffffff8118ddb2
#22 [ffff88005029bea0] do_vfs_ioctl at ffffffff8118df54
#23 [ffff88005029bf30] sys_ioctl at ffffffff8118e4d1
#24 [ffff88005029bf80] system_call_fastpath at ffffffff8100b0f2
    RIP: 0000003ae74dde07  RSP: 00007fff6c48fc00  RFLAGS: 00010246
    RAX: 0000000000000010  RBX: ffffffff8100b0f2  RCX: 0000000000000000
    RDX: 00007fff6c48fc40  RSI: 00000000424066b2  RDI: 0000000000000003
    RBP: 0000000000000001   R8: 0000000000000000   R9: 0000000000000240
    R10: 0000000000000000  R11: 0000000000000246  R12: 00000000424066b2
    R13: 00007fff6c48fc40  R14: 0000000000678380  R15: 0000000000000003
    ORIG_RAX: 0000000000000010  CS: 0033  SS: 002b